Head shield



FIG. 1 is a perspective view of a head shield showing my new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a front elevational view thereof.

FIG. 4 is a rear elevational view thereof.

FIG. 5 is a side elevational view thereof.

FIG. 6 is a side elevational view opposite the view of FIG. 5; and,

FIG. 7 is a bottom view thereof.

CLAIM The ornamental design for a head shield, as shown and described.